C / C++ / MFC

// C
fopen()
CreateFile()
 
// MFC
CFile
 
// C++
ofstream

#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *fp;
    long i;
    long fLen;
    long tmpValue;


    // try to open an existing file
    fp = fopen("test.dat", "r+b");
    // if failed, then create a file
    if (fp == NULL)
    {
        printf("File doesn't exist\n");
        printf("creating...\n");
        fp = fopen("test.dat", "w+b");
    }
    // if file opened/created ok continue
    if (fp)
        printf("File opened successfully.\n");
    // otherwise, nick-off
    else
        return -1;

    // write some binary data to the file
    for (i=0; i<100; i++)
        fwrite(&i, sizeof(i), 1, fp);

    // get length of file
    fseek(fp, 0, SEEK_END);
    fLen = ftell(fp);

    // return file pointer to beginning of file
    fseek(fp, 0, SEEK_SET);

    // loop through, reading 1 long at a time from the file and printing it's value
    for (i=0; i<fLen/sizeof(long); i++)
    {
        fread(&tmpValue, sizeof(long), 1, fp);
        printf("%4d", tmpValue);
    }

    fclose(fp);
    return 0;
}

susanne1 wrote:

Hi everybody, iam trying to prevent the user from resizing, maximizing and minimizing a FormView window by using : OnSize and OnSizing functions, but it did not work? can somebody help? Thansk in advance

susanne1 wrote:

Any idea why?

susanne1 wrote:

Subject:Visual C++6

susanne1 wrote:

iam trying to prevent the user from resizing, maximizing and minimizing a FormView window

Dhiraj kumar Saini wrote:

Can anyone help me.

Alan Chambers wrote:

I've also looked at GetKeyboardState(..) but that only retrieves the keyboard state in the thread that is handling the windows messages, so calling it from the main thread does not work (but calling it from the window thread does).

manju23reddy wrote:

shared memeory concepts